I would dry sand with 320 da,use a quart of nason ful-base to seal (its way cheaper) and easier to use...sealer evens out the color and fills paint scratches. Dontspend your lifes savings on painting that truck...300.00 tops.single stage solid red ful-thane is what I'd use and you couldnt tell it from BC/CC no one can

That's pretty much what I am doing with the Summit paint system. Single stage in red. I think I will go ahead and seal the interior paint as well as the outside. I have it all masked off anyway. These old S10/Sonomas have a LOT of painted metal on the interior.

I'll finish with the 400 grit tonight, then clean and mask everything tomorrow and shoot Saturday morning before it gets too hot.